Surveying instrument



FIG. 1 is a front, right-side, top perspective view of the surveying instrument;

FIG. 2 is a rear, left-side, top perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a left-side elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a surveying instrument, as shown and described. 